The way John Farrell sees it, Game 6 of the World Series is not the time to mess with a good thing.

And so, David Ross will remain in the Red Sox lineup tonight.

Ross took over behind the plate after slumping catcher Jarrod Saltalamacchia’s errant throw led to the obstruction call that decided Game 3. Ross has played a significant role in the last two games, both Sox victories. In addition to his usually reliable game-calling, he notched a game-winning RBI double in the 3-1 victory in Game 5 on Monday night at Busch Stadium.

“First of all, David has given us a spark offensively out of the (catching) position,” Farrell said last night before the Red Sox held a workout at Fenway Park. “And at the same time, David has done a great job with running the game from a game-calling perspective. That’s the thrust of him being back behind the plate.”

Saltalamacchia was the Red Sox’ primary catcher throughout the season, but he’s only 6-for-32 with 19 strikeouts in the playoffs, including 0-for-6 with four strikeouts in this series.

Ross, meanwhile, is 6-for-21 with two RBI in the postseason. And it’s tough to find anyone with either team who is enjoying the World Series experience more than Ross, a veteran of 12 major league seasons with a half-dozen teams.

After Game 1, Ross remarked about soaking in the atmosphere of a pregame ceremony that included a flyover. He stood on the top step of the dugout before Game 3 to see the famous Budweiser Clydesdales take their traditional lap around the warning track at Busch Stadium.

And after his big moment in Game 5, he delighted in a postgame press conference.

“I’m kind of just, I’m just in awe of being in the World Series, really,” Ross said. “That’s as signature as it gets. I’m on the podium, talking to you (media members), with the whole World Series (backdrop) behind me, right? That’s when you see people on TV. I’m stoked.”

Victorino, Gomes in

Right fielder Shane Victorino is a “full-go,” according to Farrell, after missing Games 4 and 5 because of tightness in his lower back. He is expected to start in right field.

And in left field? Farrell said Jonny Gomes will get the nod over Daniel Nava.

Never mind that Nava hits better from the left side of the plate and the Cardinals will have rookie right-hander Michael Wacha on the mound. Farrell admitted to playing a hunch with righty-swinging Gomes, who is only 6-for-39 in the playoffs but delivered a decisive three-run homer in Game 4 in St. Louis.

“You get to the point where you look at the style of pitcher on the mound in Wacha and you look at what certain hitters in our lineup are equipped to handle, and even though you might say, ‘Well, it’s a left-handed hitter, (Nava) should be in there,’ I like the matchup of Gomes vs. Nava,” Farrell said. “That doesn’t mean at some point in the game that Nava is not going to be involved. But that’s the way we’re going right now.” . . .

After logging 42⁄3 innings over back-to-back appearances in Games 3-4, lefty Felix Doubront will be available out of the bullpen tonight, according to Farrell.